1 . The part of the environmental movement that draws my firm’s attention is the design of buildings. Today, thousands of people come to ________ building conferences, and the idea that buildings can be good for people and the environment will be increasingly ________ in years to come. Back in 1984 we discovered that most manufactured products for decoration weren’t designed for ________ use. The “energy-efficient” sealed commercial buildings constructed after the 1970s energy crisis ________ indoor air quality problems caused by materials such as paint, wall covering and carpet. So for 20 years, we’ve been looking for ways to make these materials ________   for people and the planet.

Home builders can now use materials, such as green paints, that release significantly ________   amounts of chemical compounds, which people believe don’t ________ the quality of the air.   ________, our basic design strategy is focused not simply on being “less bad” but on creating ________ healthful materials that can be either safely returned to the soil or ________ by industry again and again. For example, the world’s largest carpet manufacturer has already ________ a carpet that is fully and safely recyclable.

Look at it this way: no one ________ to create a building that destroy the planet. But our current industrial systems are basically causing these conditions, whether we like it or not. So   ________ of simply trying to reduce the damage, we are ________ a positive approach. We’re giving people high-quality, healthful products and an opportunity to make choices that have a ________   effect on the world. It is not just the building industry, either. Entire cities are taking these environmentally positive approaches to design, planning and building.

2 . In 2004, Pen Hadow became the first person to trek (跋涉) to the North Pole alone, without being resupplied on the way. That meant swimming through unimaginably cold waters, and risking encounters with polar bears. Just eight months later, he made a similar trip to the South Pole. Now he is back in the Arctic again, preparing for an expedition (远征) he says is even more ambitious. Explorers are confident, driven individuals. They have to be. This time, however, more significance is attached. Pen and two colleagues will set out on a three-month, 1000-kilometre trek to the North Pole, taking detailed measurements of the thickness and density of the ice. Nobody has ever done this before, and he knows the results will be of vital significance to the scientific community. This will be the truest picture yet of what global warming is doing to the ice that covers the polar region.

Pen and his wife, Mary, live in the country with their two children. “It’s much harder to be away from them this time,” he admits. They were one and five when I last went, and I made a mistake in the way I said goodbye. I thought it would be a good idea to say to my son, “You’re the man of the house now, look after your mum and your sister.” He absolutely took it to heart, asking his mum how she was all the time, but the stress eventually became too much. While it was well intentioned, it was an unfair thing to do.

He is spending these last days before departure preparing his things. “Out on the ice, one is virtually unable to mend things or do anything that isn’t absolutely straightforward,” he says. With him will be Ann Daniels, one of the world’s leading polar explorers, and the photographer, Martin Hartley. They will be supported by a crew of six, flying in supplies. Being part of a team is actually more stressful to someone with his mentality, says Pen, and something else is on his mind too. “I’m going to be 47 on Thursday. I’ve done far less training than I’m comfortable with.” Why? “Organisational things always seem more urgent. So I’m almost fearful of what I’m going to ask of myself.”

Pen believes his mission reconnects exploration with the search for knowledge that drove previous generations into the unknown. “Making it to the North Pole was a personal ambition,’”he admits, “and of limited value to anyone beyond the polar adventuring community. This time, scientists will profit from the data, and we’re creating a platform in which to engage as many people as possible in what’s happening in the Arctic Ocean. This is important work, and nobody can do it but us,” he says. “Our skills, which are otherwise not that necessary, have become really relevant. Suddenly, we’re socially useful again.”

Fresh warning sounded on plastics problem

Walk along any beach in the world, no matter how isolated, and you will see plastic of some kind washed up on the shoreline,     1    (offer) a reminder of the reckless throwaway culture of the present-day world.

Lately, a study     2     (sound) a fresh warning on the damage caused to the marine ecosystem due to discarded plastics, which eventually has a bearing on human health due to the seafood we consume.

In a paper     3    (title) “A Growing Plastic Smog” published on March 8, 2023 in the peer-reviewed research journal Plos One, researchers called on governments around the world     4    (take) sweeping action to address the “unprecedented plastic pollution” of the world’s oceans.

The plastics break down over time into minute particles that cannot be detected by the naked eye, but find their way into the marine ecosystem and into the seafood humans consume. No one knows for certain     5     the long-term damage will be to marine life and humans, but the study placed much of the blame on the plastics industry for failing to recycle or design for recyclability. “    6     eaten, microplastics can severely damage an animal’s internal tissues. Globally, we have reached a situation     7     we can no longer ignore the plastic pollution pandemic that is infecting our oceans,” he said.

“This research shows us that beach cleanups and citizen science projects that focus on the environmental fate of plastics have little impact on solving the enormity of the plastic problem. Marcus Eriksen, lead author of the study, said in a statement that the findings were a “stark warning     8     we must act now at a global scale”. “We’ve found an alarming trend of exponential growth of microplastics in the global ocean since the millennium, which     9    (expect) to reach over 170 trillion plastic particles,” said Eriksen, adding that the exponential increase in microplastics across the world’s oceans makes     10     necessary to “bring in an age of corporate responsibility for the entire life of the things they make”.

Throughout the world, only 15% of the material that are used to make clothing is properly recycled, according to the Alle SacUrthur Club, an organization in Liverpool, UK, that boosts the circular economy. Most clothing waste—an     1    (estimate) 82 million tonnes from the fashion industry alone-produced every year ends up buried or burnt.

    2    (handle) all that waste, methods to recover and reuse the material are intended as an active response to the future risks by researchers and start-up companies. Much of their focus is on chemical recycling,     3     the material is broken down into its building blocks and applied to create new materials, including fibres that     4     (weave) into new clothes. The challenges lie in     5     (develop) the processes for such treatment. They have to be practical, but they also have to be at least as cost-effective as simply making new fibres.

    6     the natural cellulose fibres from cotton, some other materials include human-made cellulosic fibres. They are derived from wood-pulp cellulose and may be used to produce materials such as viscose (rayon) and a similar material called lyocell.

A change in the manufacturing process is being applied to the textile-waste problem by Essen, a start-up in Seattle, Washington.     7     the company has fundamentally devoted to the process is that it uses discarded textiles, instead of wood, as the source of its cellulose. It has also adjusted the process to produce a fibre that the firm’s co-founder and president Christo Stan says is superior to     8     other cellulosics and cotton, and that can be recycled more times.

Although there are abundant technical challenges, the main barrier     9     widespread textile recycling could be economic, says materials engineer Lijiang Jiang at the Massachusetts Institute of Technology in Atlanta. “Most of the materials are not that invaluable,” Jiang says. So cheap it is to produce polyester, cotton and other fabrics     10     there’s little profit margin unless the recycling processes themselves are very inexpensive.

Satellites Can Help Us Fight Climate Change

At the beginning of 2021, President Joe Biden exclaimed that “science is back” as we continued our efforts to     1     the COVID emergency. That phrase continues to ring true across the federal government. Science and its applications are being used at every agency to deal with public health     2    , build new transportation infrastructure, inform policy decisions and tackle the climate crisis.

Recently the Interior Department’s U.S. Geological Survey assumed     3     of Landsat 9 from NASA, which built and launched it in 2021.This satellite is designed to     4     Earth’s land, water and other natural resources. Landsat missions support environmental sustainability and climate resilience. The Landsat program, which launched in July 1972, has helped us understand our planet and the changes that are occurring on it. That partnership has propelled research and observation forward through the launch of     5     Landsat satellites, each replacing its predecessors and working in tandem with new capabilities and strengths.

I attended the historic launch of Landsat 9 in California. It was nothing     6     of amazing. I toured the mission control center and met a young scientist from the Navajo Nation living far away from home. She uses Landsat     7     to see her home from many miles away, and with such data, she enables her community to manage water resources in the face of a changing climate. This is the power and beauty of science at work.

All around the globe, scientists are using Landsat and other imagery to interpret what is happening on Earth today and to compare it with the 50 years’     8     of data the Landsat program has collected.

This science-based program and those like it across federal agencies are powerful tools in our efforts to responsibly manage our resources. Their prioritization helps to demonstrate the Biden-Harris administration’s commitment to lead with science. So, too, the resources provided through the president’s Bipartisan Infrastructure Law and Inflation Reduction Act will be key to the development of longer-term sustainability measures as we     9     to climate change, including building more resilient communities and protecting our natural environment.

Landsat NEXT is the upcoming mission we will develop with NASA to power better science and decision-making for the next 50 years. Science is indeed     10     us on a path to a brighter future.

10 . The Man Who Ate his Boots is a fascinating account of expeditions that went wrong. The book examines the 19th century search for a route to Asia by way of the Northwest Passage through the Arctic Ocean. Author Anthony Brandt describes the many attempts by both land and sea that ended in failure and tragedy, including the 1845 expedition led by Sir John Franklin. Brandt shows how these brave, yet sometimes foolish, explorers could have avoided starvation, frostbite, and even death if they had copied the survival techniques of the local Inuit people. Some of the more surprising details the book reveals include:

IGLOOS The explorers, despite repeatedly watching the Inuit build igloos, insisted on using canvas tents. Tents freeze in sub-zero temperatures and give little protection to anyone inside them. If they had learned to build igloos, the explorers would have been warm even in the worst Arctic weather.

SEALSKIN If the explorers had worn sealskin and furs like the Inuit, they wouldn’t have suffered from the frostbite that was common among them, but rare among the Inuit.

DOG TEAMS Why didn’t the British use dog teams to pull their sleds? Pulling sleds themselves was a tradition among many explorers right into the early 20th century. It cost Scott and his men their lives on their return from the South Pole in 1912.

The British did get something right, however, when Captain Edward Parry grew salad vegetables in boxes on board his ship. It was known that fresh vegetables and fresh meat prevented scurvy (坏血病)，although at that time the reason for this (vitamin C) had not been discovered. Parry’s men wouldn’t have been as healthy if they hadn’t eaten the salads.